Multicast over BT MPLS

Hi

Requirement is to multicast music on hold RTP stream from a Data Center to a remote site over BT IP Clear MPLS network. Catalyst 3750 switches (both running IP Services Image) will BGP peer with BT PE equipment. The Catalyst 3750 switches will also be configured with PIM-SM.

Does BT MPLS support IP Multicast? I could not find any info on the web so I am hoping people have tried it and (hopefully) it worked for them!

Re: Multicast over BT MPLS

Hi,

I think you will find that multicast is not supported on MPLS. Consequently, you will need to setup GRE tunnels to carry multicast. Since the 3750s are not apt for that, you will need dedicated routers.

Re: Multicast over BT MPLS

Thanks - I'll have a look through the documnentation. I'm glad it worked for you. I appreciate the configuration.

The SRND for 6.x mentions multicasting moh over 'local Cisco Communications devices' for Non-Fallback mode (no mention of POTS interfaces) and 'analog and digital ports within the chassis' for Fallback mode, which is why I queried this.

The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
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